Arixyleborus hirsutulus
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Arixyleborus hirsutulus lateral; W. Sittichaya |
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Arixyleborus hirsutulus dorsal; W. Sittichaya |
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Arixyleborus hirsutulus posterior; W. Sittichaya |
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Arixyleborus hirsutulus frontal; W. Sittichaya |
Taxonomic history
Arixyleborus hirsutulus Schedl, 1969a: 212.
Diagnosis
2.0 mm long (n = 1); 2.27 times as long as wide. This species is distinguished by the protibiaprotibia:
tibia of the first pair of legs
posterior face flat and unarmed; antennalantennal:
pertaining to the antennae
club as broad as tall; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
oblique, granulategranulate:
pertaining to a coarse, grainy surface texture
; elytralelytral:
pertaining to the elytra
weakly convexconvex:
appearing rounded
, without a transverse depression; striaestria:
punctures in rows, which may or may not be impressed to make grooves
not impressedimpressed:
a depression in a surface
; declivitaldeclivital:
pertaining to the elytral declivity
striae and interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br />
impressed and bear smaller punctures.
covered with small equally sized granules; and elytraelytron:
the two sclerotized forewings of beetles that protect and cover the flight wings
densely covered with setaeseta:
small hair-like or scale-like structure
, setaeseta:
small hair-like or scale-like structure
increasing in density towards apexapex:
point or edge furthest from the body; opposite of base
.
May be confused with
Arixyleborus granulifer, A. sittichayai, and Eggersanthus sublaevis
Distribution
Philippines and Thailand; imported to Japan from ‘Borneo’ and Indonesia (Maluku) (Sittichaya et al. 2019Sittichaya et al. 2019:
Sittichaya W, Smith SM, Beaver RA. 2019. Ten newly recorded species of xyleborine ambrosia beetles (Coleoptera, Curculionidae, Scolytinae, Xyleborini) from Thailand. ZooKeys 862: 109-127. https://doi.org/10.3897/ zookeys.862.34766)
Host plants
recorded from Anisoptera sp., Dipterocarpus sp., Dryobalanops sp., Shorea spp. (Dipterocarpaceae), Artocarpus sp. (Moraceae), and an unidentified species of Sapotaceae (Ohno 1990Ohno 1990:
Ohno S. 1990. The Scolytidae and Platypodidae (Coleoptera) from Borneo found in logs at Nagoya port 1. Research Bulletin of the Plant Protection Service, Japan 26: 83-94.)
DNA data
specimens not available for sequencing
